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Replace _RR with prec_RR to prevent reserved identifier clashes

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Signed-off-by: Yuto Takano <yuto.takano@arm.com>
This commit is contained in:
Yuto Takano 2021-07-14 10:20:09 +01:00
parent bc6eaf7976
commit 284857ee55
2 changed files with 10 additions and 10 deletions
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8
include/mbedtls/bignum.h
View file

@ -829,14 +829,14 @@ int mbedtls_mpi_mod_int( mbedtls_mpi_uint *r, const mbedtls_mpi *A,
* \param E The exponent MPI. This must point to an initialized MPI. * \param E The exponent MPI. This must point to an initialized MPI.
* \param N The base for the modular reduction. This must point to an * \param N The base for the modular reduction. This must point to an
* initialized MPI. * initialized MPI.
* \param _RR A helper MPI depending solely on \p N which can be used to * \param prec_RR A helper MPI depending solely on \p N which can be used to
* speed-up multiple modular exponentiations for the same value * speed-up multiple modular exponentiations for the same value
* of \p N. This may be \c NULL. If it is not \c NULL, it must * of \p N. This may be \c NULL. If it is not \c NULL, it must
* point to an initialized MPI. If it hasn't been used after * point to an initialized MPI. If it hasn't been used after
* the call to mbedtls_mpi_init(), this function will compute * the call to mbedtls_mpi_init(), this function will compute
* the helper value and store it in \p _RR for reuse on * the helper value and store it in \p prec_RR for reuse on
* subsequent calls to this function. Otherwise, the function * subsequent calls to this function. Otherwise, the function
* will assume that \p _RR holds the helper value set by a * will assume that \p prec_RR holds the helper value set by a
* previous call to mbedtls_mpi_exp_mod(), and reuse it. * previous call to mbedtls_mpi_exp_mod(), and reuse it.
* *
* \return \c 0 if successful. * \return \c 0 if successful.
@ -848,7 +848,7 @@ int mbedtls_mpi_mod_int( mbedtls_mpi_uint *r, const mbedtls_mpi *A,
*/ */
int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A, int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
const mbedtls_mpi *E, const mbedtls_mpi *N, const mbedtls_mpi *E, const mbedtls_mpi *N,
mbedtls_mpi *_RR ); mbedtls_mpi *prec_RR );
/** /**
* \brief Fill an MPI with a number of random bytes. * \brief Fill an MPI with a number of random bytes.

12
library/bignum.c
View file

@ -2297,7 +2297,7 @@ cleanup:
*/ */
int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A, int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
const mbedtls_mpi *E, const mbedtls_mpi *N, const mbedtls_mpi *E, const mbedtls_mpi *N,
mbedtls_mpi *_RR ) mbedtls_mpi *prec_RR )
{ {
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t wbits, wsize, one = 1; size_t wbits, wsize, one = 1;
@ -2365,17 +2365,17 @@ int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
/* /*
* If 1st call, pre-compute R^2 mod N * If 1st call, pre-compute R^2 mod N
*/ */
if( _RR == NULL || _RR->p == NULL ) if( prec_RR == NULL || prec_RR->p == NULL )
{ {
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &RR, 1 ) ); MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &RR, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &RR, N->n * 2 * biL ) ); MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &RR, N->n * 2 * biL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &RR, &RR, N ) ); MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &RR, &RR, N ) );
if( _RR != NULL ) if( prec_RR != NULL )
memcpy( _RR, &RR, sizeof( mbedtls_mpi ) ); memcpy( prec_RR, &RR, sizeof( mbedtls_mpi ) );
} }
else else
memcpy( &RR, _RR, sizeof( mbedtls_mpi ) ); memcpy( &RR, prec_RR, sizeof( mbedtls_mpi ) );
/* /*
* W[1] = A * R^2 * R^-1 mod N = A * R mod N * W[1] = A * R^2 * R^-1 mod N = A * R mod N
@ -2523,7 +2523,7 @@ cleanup:
mbedtls_mpi_free( &W[1] ); mbedtls_mpi_free( &T ); mbedtls_mpi_free( &Apos ); mbedtls_mpi_free( &W[1] ); mbedtls_mpi_free( &T ); mbedtls_mpi_free( &Apos );
mbedtls_mpi_free( &WW ); mbedtls_mpi_free( &WW );
if( _RR == NULL || _RR->p == NULL ) if( prec_RR == NULL || prec_RR->p == NULL )
mbedtls_mpi_free( &RR ); mbedtls_mpi_free( &RR );
return( ret ); return( ret );